Biochar made from wheat straw can help regulate soil temperature in coal mining areas with high surface temperatures. Adding different amounts of biochar affected soil density, moisture, and thermal properties. Higher biochar levels led to lower soil density and thermal conductivity. Soil moisture levels also influenced soil temperature, with medium biochar treatment showing the best results in reducing temperature fluctuations. This study suggests that using wheat straw biochar can be a beneficial practice for managing soil temperature in arid and semi-arid regions affected by coal mining activities.